Spent the weekend using sketchup8 designing a new power draw bar for the ORK mill. My goal is to make my current electric impact draw bar a push button operated system, with out using any pneumatics. Instead of an air cylinder to engage the impact wrench I plan to make a linear actuator. I was thinking of using a Fergelli L16 or L12 linear actuator. But at 80.00 a piece, plus the control board and the possibility of breaking the plastic ends put them out of my price range.
The diy linear actuator will be powered by a small gear motor and controlled by an h bridge/RC servo board circuit from the website, lets make robots . A 50amp smart car h bridge will control the direction and speed of the impact wrench. In the picture below the thin plate is a pcb that will contain a diy arduino , relays and the tactile switches. I'm not sure about the LCD display yet, I might eliminate it, to simplify the design. The switch panel is made in inkscape then printed, laminated and placed over the tactile switches to make it coolant proof .
The light blue pins will engage a locking ring on the spindle, may not need this part, will try it without it.
Trying to make it a simple add on, with out having to much wiring integrated in to the main system. The arduino sketch will have a jiggle feature to help align the nut and spindle lock, with a time out function. Will also add a circuit to put the machine in E stop when the draw bar is engaged or if there is a malfunction. Don't want an Oooop!!! moment.
Added some electronics from the sketchup warehouse to the pcb. Used the x-ray function to check to
make sure every thing fits.
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